This chapter, referred to in subsec. (d)(2), was in the original “this Act”, meaning Pub. L. 95–511, Oct. 25, 1978, 92 Stat. 1783, as amended, which is classified principally to this chapter. For complete classification of this Act to the Code, see Short Title note set out under section 1801 of this title and Tables.

2004—Subsec. (c)(2)(C). Pub. L. 108–458 substituted “Director of National Intelligence” for “Director of Central Intelligence”.

2001—Subsec. (d)(1). Pub. L. 107–56, §§ 207(a)(2), 224, temporarily substituted “90 days,” for “forty-five days,” and temporarily inserted “(A)” after “except that” and “, and (B) an order under this section for a physical search targeted against an agent of a foreign power as defined in section 1801 (b)(1)(A) of this title may be for the period specified in the application or for 120 days, whichever is less” before period at end. See Termination Date of 2001 Amendment note below.

Subsec. (d)(2). Pub. L. 107–56, §§ 207(b)(2), 224, temporarily inserted “or against an agent of a foreign power as defined in section 1801 (b)(1)(A) of this title,” after “not a United States person,”. See Termination Date of 2001 Amendment note below.

Subsec. (e)(1)(A)(ii), (3)(C). Pub. L. 107–108 substituted “72 hours” for “24 hours”.

2000—Subsecs. (b) to (f). Pub. L. 106–567 added subsec. (b) and redesignated former subsecs. (b) to (e) as (c) to (f), respectively.

For Determination by President that amendment by Pub. L. 108–458 take effect on Apr. 21, 2005, see Memorandum of President of the United States, Apr. 21, 2005, 70 F.R. 23925, set out as a note under section 401 of this title.

Amendment by Pub. L. 108–458 effective not later than six months after Dec. 17, 2004, except as otherwise expressly provided, see section 1097(a) of Pub. L. 108–458, set out in an Effective Date of 2004 Amendment; Transition Provisions note under section 401 of this title.

Amendment by Pub. L. 107–56 to cease to have effect Feb. 3, 2006, except amendment to continue in effect with respect to any particular foreign intelligence investigation that began before Feb. 3, 2006, or with respect to any particular offense or potential offense that began or occurred before Feb. 3, 2006, see section 224 of Pub. L. 107–56, set out as a note under section 2510 of Title 18, Crimes and Criminal Procedure.